Frank McNab (or MacNab) was second in command of The Regulators, the Lincoln County (NM) outfit that tried to settle the score for the murder of cattleman/entrepreneur John Tunstall. Billy the Kid was one of his cohorts.
McNab was involved in the March 1878 killings of Frank Baker and Billy Morton, who allegedly participated in the Tunstall shooting. When Regulator William McCloskey objected, McNab sh

True West March/April 2025
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- Truth Be Known
- What Has Taught Me: Deb Goodrich
- Earp, Cowboy Songs & Prairie Hygiene
- Trails of the Old West
- The Frontier Characters of South Dakota
- The Bowie Knife
- The Kindled Flame 1835
- King of the Scatterguns
- Selling the Mythic West and the Real West
- A Gut Punch Turns into a Miracle Reprieve
- The Beginnings of the Bird Cage
- Frontier Colossus